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<a name="1" href="#1">1</a>   <em class="jxr_comment">/*</em>
<a name="2" href="#2">2</a>   <em class="jxr_comment"> * Copyright 2006-2008 Michele Mostarda ( michele.mostarda@gmail.com ).</em>
<a name="3" href="#3">3</a>   <em class="jxr_comment"> * All Rights Reserved.</em>
<a name="4" href="#4">4</a>   <em class="jxr_comment"> *</em>
<a name="5" href="#5">5</a>   <em class="jxr_comment"> * Licensed under the Apache License, Version 2.0 (the 'License');</em>
<a name="6" href="#6">6</a>   <em class="jxr_comment"> * you may not use this file except in compliance with the License.</em>
<a name="7" href="#7">7</a>   <em class="jxr_comment"> * You may obtain a copy of the License at</em>
<a name="8" href="#8">8</a>   <em class="jxr_comment"> *</em>
<a name="9" href="#9">9</a>   <em class="jxr_comment"> * <a href="http://www.apache.org/licenses/LICENSE-2.0" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0</a></em>
<a name="10" href="#10">10</a>  <em class="jxr_comment"> *</em>
<a name="11" href="#11">11</a>  <em class="jxr_comment"> * Unless required by applicable law or agreed to in writing, software</em>
<a name="12" href="#12">12</a>  <em class="jxr_comment"> * distributed under the License is distributed on an 'AS IS' BASIS,</em>
<a name="13" href="#13">13</a>  <em class="jxr_comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</em>
<a name="14" href="#14">14</a>  <em class="jxr_comment"> * See the License for the specific language governing permissions and</em>
<a name="15" href="#15">15</a>  <em class="jxr_comment"> * limitations under the License.</em>
<a name="16" href="#16">16</a>  <em class="jxr_comment"> */</em>
<a name="17" href="#17">17</a>  
<a name="18" href="#18">18</a>  <strong class="jxr_keyword">package</strong> org.graphnav.swing;
<a name="19" href="#19">19</a>  
<a name="20" href="#20">20</a>  <strong class="jxr_keyword">import</strong> org.graphnav.model.Excluded;
<a name="21" href="#21">21</a>  <strong class="jxr_keyword">import</strong> org.graphnav.model.Filter;
<a name="22" href="#22">22</a>  <strong class="jxr_keyword">import</strong> org.graphnav.model.FilteredGraphModel;
<a name="23" href="#23">23</a>  <strong class="jxr_keyword">import</strong> org.graphnav.model.GraphModel;
<a name="24" href="#24">24</a>  <strong class="jxr_keyword">import</strong> org.graphnav.model.ModifiableGraphModel;
<a name="25" href="#25">25</a>  <strong class="jxr_keyword">import</strong> org.graphnav.model.event.GraphModelEvent;
<a name="26" href="#26">26</a>  <strong class="jxr_keyword">import</strong> org.graphnav.model.event.GraphModelListener;
<a name="27" href="#27">27</a>  
<a name="28" href="#28">28</a>  <strong class="jxr_keyword">import</strong> java.awt.Point;
<a name="29" href="#29">29</a>  <strong class="jxr_keyword">import</strong> java.awt.geom.Rectangle2D;
<a name="30" href="#30">30</a>  <strong class="jxr_keyword">import</strong> java.util.ArrayList;
<a name="31" href="#31">31</a>  <strong class="jxr_keyword">import</strong> java.util.Iterator;
<a name="32" href="#32">32</a>  <strong class="jxr_keyword">import</strong> java.util.List;
<a name="33" href="#33">33</a>  
<a name="34" href="#34">34</a>  
<a name="35" href="#35">35</a>  <em class="jxr_javadoccomment">/**</em>
<a name="36" href="#36">36</a>  <em class="jxr_javadoccomment"> * Default implementation of {@link EffectProcessor}.</em>
<a name="37" href="#37">37</a>  <em class="jxr_javadoccomment"> */</em>
<a name="38" href="#38">38</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">class</strong> <a href="../../../org/graphnav/swing/DefaultFadeProcessor.html">DefaultFadeProcessor</a> implements ModifiableGraphModel, <a href="../../../org/graphnav/swing/EffectProcessor.html">EffectProcessor</a> {
<a name="39" href="#39">39</a>  
<a name="40" href="#40">40</a>      <em class="jxr_javadoccomment">/**</em>
<a name="41" href="#41">41</a>  <em class="jxr_javadoccomment">     * Internal sleep worker used to smooth canvas changes.</em>
<a name="42" href="#42">42</a>  <em class="jxr_javadoccomment">     */</em>
<a name="43" href="#43">43</a>      <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">class</strong> <a href="../../../org/graphnav/swing/DefaultFadeProcessor.html">SlipWorker</a> <strong class="jxr_keyword">extends</strong> <a href="../../../org/graphnav/swing/SwingWorker.html">SwingWorker</a> {
<a name="44" href="#44">44</a>  
<a name="45" href="#45">45</a>          <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> Object construct() {
<a name="46" href="#46">46</a>              <em class="jxr_comment">//Moving the center.</em>
<a name="47" href="#47">47</a>              <strong class="jxr_keyword">double</strong> xStep = 0, yStep = 0;
<a name="48" href="#48">48</a>              <strong class="jxr_keyword">if</strong>(centerMoved) {
<a name="49" href="#49">49</a>                  xStep = ( newCenter.getX() - panel.getTranslationX()) / D_MOVE_STEPS;
<a name="50" href="#50">50</a>                  yStep = ( newCenter.getY() - panel.getTranslationY()) / D_MOVE_STEPS;
<a name="51" href="#51">51</a>              }
<a name="52" href="#52">52</a>              DefaultFadeProcessor.Move move;
<a name="53" href="#53">53</a>              DefaultFadeProcessor.Dissolve dissolve;
<a name="54" href="#54">54</a>              <strong class="jxr_keyword">for</strong>(<strong class="jxr_keyword">int</strong> i = 0; i &lt;= MOVE_STEPS; i++) {
<a name="55" href="#55">55</a>  
<a name="56" href="#56">56</a>                  <em class="jxr_comment">//Move shapes.</em>
<a name="57" href="#57">57</a>                  Iterator iter = movements.iterator();
<a name="58" href="#58">58</a>                  <strong class="jxr_keyword">while</strong>(iter.hasNext()) {
<a name="59" href="#59">59</a>                      move = (DefaultFadeProcessor.Move) iter.next();
<a name="60" href="#60">60</a>                      move.performStep(i);
<a name="61" href="#61">61</a>                  }
<a name="62" href="#62">62</a>  
<a name="63" href="#63">63</a>                  <em class="jxr_comment">//Fade shapes.</em>
<a name="64" href="#64">64</a>                  <strong class="jxr_keyword">if</strong>(i &lt;= DISSOLVE_STEPS) {
<a name="65" href="#65">65</a>                     Iterator iter2 = dissolvence.iterator();
<a name="66" href="#66">66</a>                      <strong class="jxr_keyword">while</strong>(iter2.hasNext()) {
<a name="67" href="#67">67</a>                          dissolve = (DefaultFadeProcessor.Dissolve) iter2.next();
<a name="68" href="#68">68</a>                          dissolve.performStep(i);
<a name="69" href="#69">69</a>                      }
<a name="70" href="#70">70</a>                  }
<a name="71" href="#71">71</a>  
<a name="72" href="#72">72</a>                  <em class="jxr_comment">//Repaint all.</em>
<a name="73" href="#73">73</a>                  <strong class="jxr_keyword">if</strong>(centerMoved) {
<a name="74" href="#74">74</a>                      <em class="jxr_comment">//FIXME: this should happen by virtually moving the nodes.</em>
<a name="75" href="#75">75</a>                      panel.translateViewLocation(xStep, yStep);
<a name="76" href="#76">76</a>                  } <strong class="jxr_keyword">else</strong> {
<a name="77" href="#77">77</a>                      <em class="jxr_comment">//FIXME: this should be removed.</em>
<a name="78" href="#78">78</a>                      <em class="jxr_comment">//panel.repaint();</em>
<a name="79" href="#79">79</a>                      notifyModelChanged(<strong class="jxr_keyword">null</strong>);
<a name="80" href="#80">80</a>                  }
<a name="81" href="#81">81</a>  
<a name="82" href="#82">82</a>                  <em class="jxr_comment">//Wait.</em>
<a name="83" href="#83">83</a>                  <strong class="jxr_keyword">try</strong> {
<a name="84" href="#84">84</a>                      wait(30);
<a name="85" href="#85">85</a>                  } <strong class="jxr_keyword">catch</strong> (InterruptedException e) {
<a name="86" href="#86">86</a>                      e.printStackTrace();
<a name="87" href="#87">87</a>                  }
<a name="88" href="#88">88</a>              }
<a name="89" href="#89">89</a>  
<a name="90" href="#90">90</a>              <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">null</strong>;
<a name="91" href="#91">91</a>          }
<a name="92" href="#92">92</a>  
<a name="93" href="#93">93</a>          <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> finished() {
<a name="94" href="#94">94</a>              movements.clear();
<a name="95" href="#95">95</a>              dissolvence.clear();
<a name="96" href="#96">96</a>              centerMoved = false;
<a name="97" href="#97">97</a>          }
<a name="98" href="#98">98</a>      }
<a name="99" href="#99">99</a>  
<a name="100" href="#100">100</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">class</strong> <a href="../../../org/graphnav/swing/DefaultFadeProcessor.html">Move</a> {
<a name="101" href="#101">101</a> 
<a name="102" href="#102">102</a>         <strong class="jxr_keyword">private</strong> <a href="../../../org/graphnav/swing/MovableShape.html">MovableShape</a> target;
<a name="103" href="#103">103</a> 
<a name="104" href="#104">104</a>         <strong class="jxr_keyword">private</strong> Point moveTo;
<a name="105" href="#105">105</a> 
<a name="106" href="#106">106</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> stepX;
<a name="107" href="#107">107</a>         <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">int</strong> stepY;
<a name="108" href="#108">108</a> 
<a name="109" href="#109">109</a>         <a href="../../../org/graphnav/swing/DefaultFadeProcessor.html">Move</a>(<a href="../../../org/graphnav/swing/MovableShape.html">MovableShape</a> ms, Point mt) {
<a name="110" href="#110">110</a>             target = ms;
<a name="111" href="#111">111</a>             moveTo = mt;
<a name="112" href="#112">112</a>             <strong class="jxr_keyword">double</strong> dx = moveTo.getX() - ms.getBounds2D(panel.getDetailLevel()).getX();
<a name="113" href="#113">113</a>             <strong class="jxr_keyword">double</strong> dy = moveTo.getY() - ms.getBounds2D(panel.getDetailLevel()).getY();
<a name="114" href="#114">114</a>             stepX = (<strong class="jxr_keyword">int</strong>) Math.round( dx / D_MOVE_STEPS);
<a name="115" href="#115">115</a>             stepY = (<strong class="jxr_keyword">int</strong>) Math.round( dy / D_MOVE_STEPS);
<a name="116" href="#116">116</a>         }
<a name="117" href="#117">117</a> 
<a name="118" href="#118">118</a>         <strong class="jxr_keyword">void</strong> performStep(<strong class="jxr_keyword">int</strong> i) {
<a name="119" href="#119">119</a>             <strong class="jxr_keyword">if</strong>(i &lt; MOVE_STEPS) {
<a name="120" href="#120">120</a>                 target.move(stepX, stepY);
<a name="121" href="#121">121</a>             } <strong class="jxr_keyword">else</strong> {
<a name="122" href="#122">122</a>                 target.setLocation((<strong class="jxr_keyword">int</strong>) moveTo.getX(), (<strong class="jxr_keyword">int</strong>) moveTo.getY());
<a name="123" href="#123">123</a>             }
<a name="124" href="#124">124</a>         }
<a name="125" href="#125">125</a> 
<a name="126" href="#126">126</a>     }
<a name="127" href="#127">127</a> 
<a name="128" href="#128">128</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">class</strong> <a href="../../../org/graphnav/swing/DefaultFadeProcessor.html">Dissolve</a> {
<a name="129" href="#129">129</a> 
<a name="130" href="#130">130</a>         <strong class="jxr_keyword">private</strong> <a href="../../../org/graphnav/swing/Renderable.html">Renderable</a> target;
<a name="131" href="#131">131</a> 
<a name="132" href="#132">132</a>         <a href="../../../org/graphnav/swing/DefaultFadeProcessor.html">Dissolve</a>(<a href="../../../org/graphnav/swing/Renderable.html">Renderable</a> r) {
<a name="133" href="#133">133</a>             target = r;
<a name="134" href="#134">134</a>         }
<a name="135" href="#135">135</a> 
<a name="136" href="#136">136</a>         <strong class="jxr_keyword">void</strong> performStep(<strong class="jxr_keyword">int</strong> i) {
<a name="137" href="#137">137</a>             target.setTrasparency((<strong class="jxr_keyword">float</strong>) i / (<strong class="jxr_keyword">float</strong>) DISSOLVE_STEPS);
<a name="138" href="#138">138</a>         }
<a name="139" href="#139">139</a>     }
<a name="140" href="#140">140</a> 
<a name="141" href="#141">141</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">class</strong> <a href="../../../org/graphnav/swing/DefaultFadeProcessor.html">InternalFilter</a> implements <a href="../../../org/graphnav/model/Filter.html">Filter</a> {
<a name="142" href="#142">142</a> 
<a name="143" href="#143">143</a>         <strong class="jxr_keyword">private</strong> <a href="../../../org/graphnav/swing/Node.html">Node</a> selectedNode;
<a name="144" href="#144">144</a> 
<a name="145" href="#145">145</a>         <em class="jxr_comment">//private HashSet selectedNodes = new HashSet();</em>
<a name="146" href="#146">146</a> 
<a name="147" href="#147">147</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> setSelectedNode(<a href="../../../org/graphnav/swing/Node.html">Node</a> n) {
<a name="148" href="#148">148</a>             selectedNode = n;
<a name="149" href="#149">149</a>         }
<a name="150" href="#150">150</a> 
<a name="151" href="#151">151</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> init() {}
<a name="152" href="#152">152</a> 
<a name="153" href="#153">153</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> release() {
<a name="154" href="#154">154</a>             <em class="jxr_comment">//selectedNodes.clear();</em>
<a name="155" href="#155">155</a>         }
<a name="156" href="#156">156</a> 
<a name="157" href="#157">157</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> nodeIsVisible(<a href="../../../org/graphnav/model/GraphModel.html">GraphModel</a> model, <a href="../../../org/graphnav/swing/Node.html">Node</a> node) {
<a name="158" href="#158">158</a>             <strong class="jxr_keyword">if</strong>( selectedNode == <strong class="jxr_keyword">null</strong> || selectedNode.equals(node) || model.adiacent(selectedNode, node) ) {
<a name="159" href="#159">159</a>                 <em class="jxr_comment">//selectedNodes.add(node);</em>
<a name="160" href="#160">160</a>                 <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a name="161" href="#161">161</a>             }
<a name="162" href="#162">162</a>             <strong class="jxr_keyword">return</strong> false;
<a name="163" href="#163">163</a>         }
<a name="164" href="#164">164</a> 
<a name="165" href="#165">165</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> arcIsVisible(<a href="../../../org/graphnav/model/GraphModel.html">GraphModel</a> model, <a href="../../../org/graphnav/swing/Arc.html">Arc</a> arc) {
<a name="166" href="#166">166</a>             <em class="jxr_comment">//return selectedNode == null || ( selectedNodes.contains(arc.getFromNode()) &amp;&amp; selectedNodes.contains(arc.getToNode()) );</em>
<a name="167" href="#167">167</a>             <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a name="168" href="#168">168</a>         }
<a name="169" href="#169">169</a> 
<a name="170" href="#170">170</a>         <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> equals(Object obj) {
<a name="171" href="#171">171</a>             <strong class="jxr_keyword">if</strong>(obj == <strong class="jxr_keyword">null</strong>) {
<a name="172" href="#172">172</a>                 <strong class="jxr_keyword">return</strong> false;
<a name="173" href="#173">173</a>             }
<a name="174" href="#174">174</a>             <strong class="jxr_keyword">if</strong>(obj == <strong class="jxr_keyword">this</strong>) {
<a name="175" href="#175">175</a>                 <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">true</strong>;
<a name="176" href="#176">176</a>             }
<a name="177" href="#177">177</a>             <strong class="jxr_keyword">if</strong>(obj instanceof <a href="../../../org/graphnav/swing/DefaultFadeProcessor.html">InternalFilter</a>) {
<a name="178" href="#178">178</a>                 <a href="../../../org/graphnav/swing/DefaultFadeProcessor.html">InternalFilter</a> other = (InternalFilter) obj;
<a name="179" href="#179">179</a>                 <strong class="jxr_keyword">return</strong> selectedNode.equals(other.selectedNode);
<a name="180" href="#180">180</a>             }
<a name="181" href="#181">181</a>             <strong class="jxr_keyword">return</strong> false;
<a name="182" href="#182">182</a>         }
<a name="183" href="#183">183</a>     }
<a name="184" href="#184">184</a> 
<a name="185" href="#185">185</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> MOVE_STEPS = 20;
<a name="186" href="#186">186</a> 
<a name="187" href="#187">187</a>     <em class="jxr_comment">//FIXME: now DISSOLVE_STEPS must be &lt; MOVE_STEPS.</em>
<a name="188" href="#188">188</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">int</strong> DISSOLVE_STEPS = 5;
<a name="189" href="#189">189</a> 
<a name="190" href="#190">190</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">double</strong> D_MOVE_STEPS = (<strong class="jxr_keyword">double</strong>) MOVE_STEPS;
<a name="191" href="#191">191</a> 
<a name="192" href="#192">192</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> java.util.List&lt;Move&gt; movements;
<a name="193" href="#193">193</a> 
<a name="194" href="#194">194</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> java.util.List&lt;Dissolve&gt; dissolvence;
<a name="195" href="#195">195</a> 
<a name="196" href="#196">196</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">final</strong> Point newCenter = <strong class="jxr_keyword">new</strong> Point();
<a name="197" href="#197">197</a> 
<a name="198" href="#198">198</a>     <strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">boolean</strong> centerMoved = false;
<a name="199" href="#199">199</a> 
<a name="200" href="#200">200</a>     <strong class="jxr_keyword">private</strong> <a href="../../../org/graphnav/swing/GraphPanel.html">GraphPanel</a> panel;
<a name="201" href="#201">201</a> 
<a name="202" href="#202">202</a>     <strong class="jxr_keyword">private</strong> <a href="../../../org/graphnav/model/GraphModel.html">GraphModel</a> decorated;
<a name="203" href="#203">203</a> 
<a name="204" href="#204">204</a>     <strong class="jxr_keyword">private</strong> <a href="../../../org/graphnav/model/FilteredGraphModel.html">FilteredGraphModel</a> filteredDecorated;
<a name="205" href="#205">205</a> 
<a name="206" href="#206">206</a>     <strong class="jxr_keyword">private</strong> <a href="../../../org/graphnav/swing/DefaultFadeProcessor.html">InternalFilter</a> internalFilter;
<a name="207" href="#207">207</a> 
<a name="208" href="#208">208</a>     <strong class="jxr_keyword">private</strong> <a href="../../../org/graphnav/swing/NodeLayout.html">NodeLayout</a> nodeLayout;
<a name="209" href="#209">209</a> 
<a name="210" href="#210">210</a>     <strong class="jxr_keyword">private</strong> List&lt;GraphModelListener&gt; listeners;
<a name="211" href="#211">211</a> 
<a name="212" href="#212">212</a> 
<a name="213" href="#213">213</a>     <strong class="jxr_keyword">protected</strong> <a href="../../../org/graphnav/swing/DefaultFadeProcessor.html">DefaultFadeProcessor</a>(<a href="../../../org/graphnav/swing/GraphPanel.html">GraphPanel</a> panel, <a href="../../../org/graphnav/model/GraphModel.html">GraphModel</a> model) {
<a name="214" href="#214">214</a>         <strong class="jxr_keyword">this</strong>.panel     = panel;
<a name="215" href="#215">215</a> 
<a name="216" href="#216">216</a>         <strong class="jxr_keyword">this</strong>.decorated = model;
<a name="217" href="#217">217</a>         <strong class="jxr_keyword">this</strong>.internalFilter = <strong class="jxr_keyword">new</strong> <a href="../../../org/graphnav/swing/DefaultFadeProcessor.html">InternalFilter</a>();
<a name="218" href="#218">218</a>         <strong class="jxr_keyword">this</strong>.filteredDecorated = <strong class="jxr_keyword">new</strong> <a href="../../../org/graphnav/model/FilteredGraphModel.html">FilteredGraphModel</a>(decorated, FilteredGraphModel.EMPTY_FILTER);
<a name="219" href="#219">219</a>         <strong class="jxr_keyword">this</strong>.filteredDecorated.addGraphModelListener(
<a name="220" href="#220">220</a>             <strong class="jxr_keyword">new</strong> <a href="../../../org/graphnav/model/event/GraphModelListener.html">GraphModelListener</a>() {
<a name="221" href="#221">221</a>                 <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> modelChanged(<a href="../../../org/graphnav/model/event/GraphModelEvent.html">GraphModelEvent</a> gme) {
<a name="222" href="#222">222</a>                    notifyModelChanged(gme);
<a name="223" href="#223">223</a>                 }
<a name="224" href="#224">224</a>             }
<a name="225" href="#225">225</a>         );
<a name="226" href="#226">226</a>         <strong class="jxr_keyword">this</strong>.nodeLayout = <strong class="jxr_keyword">new</strong> <a href="../../../org/graphnav/swing/RoundNodeLayout.html">RoundNodeLayout</a>();
<a name="227" href="#227">227</a> 
<a name="228" href="#228">228</a>         movements   = <strong class="jxr_keyword">new</strong> ArrayList&lt;Move&gt;();
<a name="229" href="#229">229</a>         dissolvence = <strong class="jxr_keyword">new</strong> ArrayList&lt;Dissolve&gt;();
<a name="230" href="#230">230</a>         listeners   = <strong class="jxr_keyword">new</strong> ArrayList&lt;GraphModelListener&gt;();
<a name="231" href="#231">231</a>     }
<a name="232" href="#232">232</a> 
<a name="233" href="#233">233</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> shiftView(<strong class="jxr_keyword">double</strong> sx, <strong class="jxr_keyword">double</strong> sy) {
<a name="234" href="#234">234</a>         <strong class="jxr_keyword">double</strong> x = panel.getWidth()  / 2 - sx;
<a name="235" href="#235">235</a>         <strong class="jxr_keyword">double</strong> y = panel.getHeight() / 2 - sy;
<a name="236" href="#236">236</a>         setNewCenter(x,y);
<a name="237" href="#237">237</a>         go();
<a name="238" href="#238">238</a>     }
<a name="239" href="#239">239</a> 
<a name="240" href="#240">240</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> enhanceNode(<strong class="jxr_keyword">final</strong> <a href="../../../org/graphnav/swing/Node.html">Node</a> n, <strong class="jxr_keyword">boolean</strong> showOnlyAdiacents, <strong class="jxr_keyword">boolean</strong> layoutAdiacents) {
<a name="241" href="#241">241</a>         <em class="jxr_comment">//Filtering adiacent nodes.</em>
<a name="242" href="#242">242</a>         <strong class="jxr_keyword">if</strong>(showOnlyAdiacents) {
<a name="243" href="#243">243</a>             internalFilter.setSelectedNode(n);
<a name="244" href="#244">244</a>             filteredDecorated.setFilter(internalFilter); <em class="jxr_comment">//TODO: fix excluded dissolvence.</em>
<a name="245" href="#245">245</a>             <a href="../../../org/graphnav/model/Excluded.html">Excluded</a> excluded = filteredDecorated.validate();
<a name="246" href="#246">246</a>             addDissolvence(excluded.excludedNodes());
<a name="247" href="#247">247</a>             addDissolvence(excluded.excludedArcs());
<a name="248" href="#248">248</a>         }
<a name="249" href="#249">249</a> 
<a name="250" href="#250">250</a>         <em class="jxr_comment">//Center node and rotating adiacent nodes.</em>
<a name="251" href="#251">251</a>         Rectangle2D nBounds = n.getBounds2D(panel.getDetailLevel());
<a name="252" href="#252">252</a>         <strong class="jxr_keyword">double</strong> x = panel.getWidth()  / 2 - nBounds.getCenterX();
<a name="253" href="#253">253</a>         <strong class="jxr_keyword">double</strong> y = panel.getHeight() / 2 - nBounds.getCenterY();
<a name="254" href="#254">254</a>         setNewCenter(x,y);
<a name="255" href="#255">255</a> 
<a name="256" href="#256">256</a>         <strong class="jxr_keyword">if</strong>(layoutAdiacents) {
<a name="257" href="#257">257</a>             getNodeLayout().processLayout(<strong class="jxr_keyword">this</strong>, <strong class="jxr_keyword">this</strong>, panel.getDetailLevel(), n);
<a name="258" href="#258">258</a>         }
<a name="259" href="#259">259</a> 
<a name="260" href="#260">260</a>         go();
<a name="261" href="#261">261</a>     }
<a name="262" href="#262">262</a> 
<a name="263" href="#263">263</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> disableEnhancement() {
<a name="264" href="#264">264</a>        filteredDecorated.setFilter(FilteredGraphModel.EMPTY_FILTER);
<a name="265" href="#265">265</a>     }
<a name="266" href="#266">266</a> 
<a name="267" href="#267">267</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <a href="../../../org/graphnav/swing/EffectProcessor.html">EffectProcessor</a> addMovement(<a href="../../../org/graphnav/swing/MovableShape.html">MovableShape</a> s, Point p) {
<a name="268" href="#268">268</a>         movements.add( <strong class="jxr_keyword">new</strong> DefaultFadeProcessor.Move(s, p) );
<a name="269" href="#269">269</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>;
<a name="270" href="#270">270</a>     }
<a name="271" href="#271">271</a> 
<a name="272" href="#272">272</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <a href="../../../org/graphnav/swing/EffectProcessor.html">EffectProcessor</a> addDissolvence(<a href="../../../org/graphnav/swing/Renderable.html">Renderable</a> r) {
<a name="273" href="#273">273</a>         dissolvence.add(<strong class="jxr_keyword">new</strong> DefaultFadeProcessor.Dissolve(r));
<a name="274" href="#274">274</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>;
<a name="275" href="#275">275</a>     }
<a name="276" href="#276">276</a> 
<a name="277" href="#277">277</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <a href="../../../org/graphnav/swing/EffectProcessor.html">EffectProcessor</a> addDissolvence(List l) {
<a name="278" href="#278">278</a>         <strong class="jxr_keyword">for</strong>(Iterator i = l.iterator(); i.hasNext(); ) {
<a name="279" href="#279">279</a>             addDissolvence( (Renderable) i.next() );
<a name="280" href="#280">280</a>         }
<a name="281" href="#281">281</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>;
<a name="282" href="#282">282</a>     }
<a name="283" href="#283">283</a> 
<a name="284" href="#284">284</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <a href="../../../org/graphnav/swing/EffectProcessor.html">EffectProcessor</a> setNewCenter(<strong class="jxr_keyword">double</strong> x, <strong class="jxr_keyword">double</strong> y) {
<a name="285" href="#285">285</a>         newCenter.setLocation(x,y);
<a name="286" href="#286">286</a>         centerMoved = <strong class="jxr_keyword">true</strong>;
<a name="287" href="#287">287</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>;
<a name="288" href="#288">288</a>     }
<a name="289" href="#289">289</a> 
<a name="290" href="#290">290</a>     <strong class="jxr_keyword">public</strong> <a href="../../../org/graphnav/swing/EffectProcessor.html">EffectProcessor</a> moveToOrigin() {
<a name="291" href="#291">291</a>         setNewCenter(0, 0);
<a name="292" href="#292">292</a>         <strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">this</strong>;
<a name="293" href="#293">293</a>     }
<a name="294" href="#294">294</a> 
<a name="295" href="#295">295</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">synchronized</strong> <strong class="jxr_keyword">void</strong> go() {
<a name="296" href="#296">296</a>         DefaultFadeProcessor.SlipWorker sl = <strong class="jxr_keyword">new</strong> DefaultFadeProcessor.SlipWorker();
<a name="297" href="#297">297</a>         sl.start();
<a name="298" href="#298">298</a>     }
<a name="299" href="#299">299</a> 
<a name="300" href="#300">300</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> startVisit() {
<a name="301" href="#301">301</a> 
<a name="302" href="#302">302</a>     }
<a name="303" href="#303">303</a> 
<a name="304" href="#304">304</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> endVisit() {
<a name="305" href="#305">305</a> 
<a name="306" href="#306">306</a>     }
<a name="307" href="#307">307</a> 
<a name="308" href="#308">308</a>     <strong class="jxr_keyword">public</strong> Iterator&lt;Node&gt; nodes() {
<a name="309" href="#309">309</a>         <strong class="jxr_keyword">return</strong> filteredDecorated.nodes();
<a name="310" href="#310">310</a>     }
<a name="311" href="#311">311</a> 
<a name="312" href="#312">312</a>     <strong class="jxr_keyword">public</strong> Iterator&lt;Arc&gt; arcs() {
<a name="313" href="#313">313</a>         <strong class="jxr_keyword">return</strong> filteredDecorated.arcs();
<a name="314" href="#314">314</a>     }
<a name="315" href="#315">315</a> 
<a name="316" href="#316">316</a>     <strong class="jxr_keyword">public</strong> <a href="../../../org/graphnav/swing/Node.html">Node</a> getNode(<strong class="jxr_keyword">int</strong> i) {
<a name="317" href="#317">317</a>         <strong class="jxr_keyword">return</strong> filteredDecorated.getNode(i);
<a name="318" href="#318">318</a>     }
<a name="319" href="#319">319</a> 
<a name="320" href="#320">320</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> nodesCount() {
<a name="321" href="#321">321</a>         <strong class="jxr_keyword">return</strong> filteredDecorated.nodesCount();
<a name="322" href="#322">322</a>     }
<a name="323" href="#323">323</a> 
<a name="324" href="#324">324</a>     <strong class="jxr_keyword">public</strong> <a href="../../../org/graphnav/swing/Arc.html">Arc</a> getArc(<strong class="jxr_keyword">int</strong> i) {
<a name="325" href="#325">325</a>         <strong class="jxr_keyword">return</strong> filteredDecorated.getArc(i);
<a name="326" href="#326">326</a>     }
<a name="327" href="#327">327</a> 
<a name="328" href="#328">328</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> arcsCount() {
<a name="329" href="#329">329</a>         <strong class="jxr_keyword">return</strong> filteredDecorated.arcsCount();
<a name="330" href="#330">330</a>     }
<a name="331" href="#331">331</a> 
<a name="332" href="#332">332</a>     <strong class="jxr_keyword">public</strong> Iterator&lt;Node&gt; getOutgoingNodes(<a href="../../../org/graphnav/swing/Node.html">Node</a> n) {
<a name="333" href="#333">333</a>         <strong class="jxr_keyword">return</strong> filteredDecorated.getOutgoingNodes(n);
<a name="334" href="#334">334</a>     }
<a name="335" href="#335">335</a> 
<a name="336" href="#336">336</a>     <strong class="jxr_keyword">public</strong> Iterator&lt;Node&gt; getIngoingNodes(<a href="../../../org/graphnav/swing/Node.html">Node</a> n) {
<a name="337" href="#337">337</a>         <strong class="jxr_keyword">return</strong> filteredDecorated.getIngoingNodes(n);
<a name="338" href="#338">338</a>     }
<a name="339" href="#339">339</a> 
<a name="340" href="#340">340</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> outgoingNodesCount(<a href="../../../org/graphnav/swing/Node.html">Node</a> n) {
<a name="341" href="#341">341</a>         <strong class="jxr_keyword">return</strong> filteredDecorated.outgoingNodesCount(n);
<a name="342" href="#342">342</a>     }
<a name="343" href="#343">343</a> 
<a name="344" href="#344">344</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">int</strong> ingoingNodesCount(<a href="../../../org/graphnav/swing/Node.html">Node</a> n) {
<a name="345" href="#345">345</a>         <strong class="jxr_keyword">return</strong> filteredDecorated.ingoingNodesCount(n);
<a name="346" href="#346">346</a>     }
<a name="347" href="#347">347</a> 
<a name="348" href="#348">348</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">boolean</strong> adiacent(<a href="../../../org/graphnav/swing/Node.html">Node</a> n1, <a href="../../../org/graphnav/swing/Node.html">Node</a> n2) {
<a name="349" href="#349">349</a>         <strong class="jxr_keyword">return</strong> filteredDecorated.adiacent(n1, n2);
<a name="350" href="#350">350</a>     }
<a name="351" href="#351">351</a> 
<a name="352" href="#352">352</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addGraphModelListener(<a href="../../../org/graphnav/model/event/GraphModelListener.html">GraphModelListener</a> gml) {
<a name="353" href="#353">353</a>         listeners.add(gml);
<a name="354" href="#354">354</a>     }
<a name="355" href="#355">355</a> 
<a name="356" href="#356">356</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> removeGraphModelListener(<a href="../../../org/graphnav/model/event/GraphModelListener.html">GraphModelListener</a> gml) {
<a name="357" href="#357">357</a>         listeners.remove(gml);
<a name="358" href="#358">358</a>     }
<a name="359" href="#359">359</a> 
<a name="360" href="#360">360</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addNode(<a href="../../../org/graphnav/swing/Node.html">Node</a> node) {
<a name="361" href="#361">361</a>        <strong class="jxr_keyword">if</strong>(decorated instanceof <a href="../../../org/graphnav/model/ModifiableGraphModel.html">ModifiableGraphModel</a>) {
<a name="362" href="#362">362</a>            ( (<a href="../../../org/graphnav/model/ModifiableGraphModel.html">ModifiableGraphModel</a>) decorated).addNode(node);
<a name="363" href="#363">363</a>        } <strong class="jxr_keyword">else</strong> {
<a name="364" href="#364">364</a>            <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="365" href="#365">365</a>        }
<a name="366" href="#366">366</a>     }
<a name="367" href="#367">367</a> 
<a name="368" href="#368">368</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> removeNode(<a href="../../../org/graphnav/swing/Node.html">Node</a> node) {
<a name="369" href="#369">369</a>        <strong class="jxr_keyword">if</strong>(decorated instanceof <a href="../../../org/graphnav/model/ModifiableGraphModel.html">ModifiableGraphModel</a>) {
<a name="370" href="#370">370</a>            ( (<a href="../../../org/graphnav/model/ModifiableGraphModel.html">ModifiableGraphModel</a>) decorated).removeNode(node);
<a name="371" href="#371">371</a>        } <strong class="jxr_keyword">else</strong> {
<a name="372" href="#372">372</a>            <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="373" href="#373">373</a>        }
<a name="374" href="#374">374</a>     }
<a name="375" href="#375">375</a> 
<a name="376" href="#376">376</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> addArc(<a href="../../../org/graphnav/swing/Arc.html">Arc</a> a) {
<a name="377" href="#377">377</a>        <strong class="jxr_keyword">if</strong>(decorated instanceof <a href="../../../org/graphnav/model/ModifiableGraphModel.html">ModifiableGraphModel</a>) {
<a name="378" href="#378">378</a>            ( (<a href="../../../org/graphnav/model/ModifiableGraphModel.html">ModifiableGraphModel</a>) decorated).addArc(a);
<a name="379" href="#379">379</a>        } <strong class="jxr_keyword">else</strong> {
<a name="380" href="#380">380</a>            <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="381" href="#381">381</a>        }
<a name="382" href="#382">382</a>     }
<a name="383" href="#383">383</a> 
<a name="384" href="#384">384</a>     <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">void</strong> removeArc(<a href="../../../org/graphnav/swing/Arc.html">Arc</a> a) {
<a name="385" href="#385">385</a>        <strong class="jxr_keyword">if</strong>(decorated instanceof <a href="../../../org/graphnav/model/ModifiableGraphModel.html">ModifiableGraphModel</a>) {
<a name="386" href="#386">386</a>            ( (<a href="../../../org/graphnav/model/ModifiableGraphModel.html">ModifiableGraphModel</a>) decorated).removeArc(a);
<a name="387" href="#387">387</a>        } <strong class="jxr_keyword">else</strong> {
<a name="388" href="#388">388</a>            <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="389" href="#389">389</a>        }
<a name="390" href="#390">390</a>     }
<a name="391" href="#391">391</a> 
<a name="392" href="#392">392</a>     <strong class="jxr_keyword">public</strong> <a href="../../../org/graphnav/swing/Node.html">Node</a> createNode(Object data, Point pos) {
<a name="393" href="#393">393</a>        <strong class="jxr_keyword">if</strong>(decorated instanceof <a href="../../../org/graphnav/model/ModifiableGraphModel.html">ModifiableGraphModel</a>) {
<a name="394" href="#394">394</a>            <strong class="jxr_keyword">return</strong> ( (ModifiableGraphModel) decorated).createNode(data, pos);
<a name="395" href="#395">395</a>        } <strong class="jxr_keyword">else</strong> {
<a name="396" href="#396">396</a>            <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="397" href="#397">397</a>        }
<a name="398" href="#398">398</a>     }
<a name="399" href="#399">399</a> 
<a name="400" href="#400">400</a>     <strong class="jxr_keyword">public</strong> <a href="../../../org/graphnav/swing/Arc.html">Arc</a> createArc(<a href="../../../org/graphnav/swing/Node.html">Node</a> src , <a href="../../../org/graphnav/swing/Node.html">Node</a> dst, Object data) {
<a name="401" href="#401">401</a>        <strong class="jxr_keyword">if</strong>(decorated instanceof <a href="../../../org/graphnav/model/ModifiableGraphModel.html">ModifiableGraphModel</a>) {
<a name="402" href="#402">402</a>            <strong class="jxr_keyword">return</strong> ( (ModifiableGraphModel) decorated).createArc(src, dst, data);
<a name="403" href="#403">403</a>        } <strong class="jxr_keyword">else</strong> {
<a name="404" href="#404">404</a>            <strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> UnsupportedOperationException();
<a name="405" href="#405">405</a>        }
<a name="406" href="#406">406</a>     }
<a name="407" href="#407">407</a> 
<a name="408" href="#408">408</a>     <strong class="jxr_keyword">protected</strong> <a href="../../../org/graphnav/swing/NodeLayout.html">NodeLayout</a> getNodeLayout() {
<a name="409" href="#409">409</a>         <strong class="jxr_keyword">return</strong> nodeLayout;
<a name="410" href="#410">410</a>     }
<a name="411" href="#411">411</a> 
<a name="412" href="#412">412</a>     <strong class="jxr_keyword">protected</strong> <strong class="jxr_keyword">void</strong> notifyModelChanged(<a href="../../../org/graphnav/model/event/GraphModelEvent.html">GraphModelEvent</a> gme) {
<a name="413" href="#413">413</a>         <strong class="jxr_keyword">final</strong> <a href="../../../org/graphnav/model/event/GraphModelEvent.html">GraphModelEvent</a> _gme = gme == <strong class="jxr_keyword">null</strong> ?  <strong class="jxr_keyword">new</strong> GraphModelEvent(<strong class="jxr_keyword">this</strong>) : gme;
<a name="414" href="#414">414</a>         Iterator listenersIterator = listeners.iterator();
<a name="415" href="#415">415</a>         <strong class="jxr_keyword">while</strong>(listenersIterator.hasNext()) {
<a name="416" href="#416">416</a>             ( (<a href="../../../org/graphnav/model/event/GraphModelListener.html">GraphModelListener</a>) listenersIterator.next() ).modelChanged(_gme);
<a name="417" href="#417">417</a>         }
<a name="418" href="#418">418</a>     }
<a name="419" href="#419">419</a> 
<a name="420" href="#420">420</a> }
</pre>
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